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Showing posts with label stars. Show all posts
Showing posts with label stars. Show all posts

Thursday, May 19, 2016

What is the Nebra disc?

Nebra disc is a great archaeological find of 1999 in the Mittelberg hill near Nebra (State of Saxony-Anhalt, Germany).

History of discovery
In the summer of 1999 looters, who were engaged in search ammunition and military weapons discovered with the help of metal detectors, 

Saturday, July 27, 2013

Super-dense neutron stars and their secrets

Scientists have new clue to the strange operation of neutron stars - these objects are so dense that they compress the mass of several suns in the space of less than a terrestrial city.

Neutron stars are born when a massive star runs out of fuel for nuclear fusion and decay. They cast off its outer layers, and their nuclei are compressed by gravity and become denser and denser. 

Saturday, July 20, 2013

The planets orbiting cooler stars have a warm climate

There is an assumption that the planets orbiting the cold star may not be on the surface of snow or ice, in contrast to those that rotate around hot. This is possible due to the interaction of starlight with ice and snow on the surface of the planets.

Tuesday, November 13, 2012

Stars young and old?



This colorful view of the globular cluster NGC 6362 has been with the Wide Field Imager on the ESO / MPG 2.2-meter telescope was added to the ESO La Silla Observatory in Chile. Together with a new recording of the central region of the cluster, which has delivered the Hubble Space Telescope by NASA and ESA, this picture conveys the best to date view of this little-known globular cluster. The majority of stars in globular clusters is very old. In this bunch there are also some stars that act unusually young.

Friday, June 22, 2012

A garden center of stars the "nebula of war and peace”

The Very Large Telescope (VLT) of the European Southern Observatory (ESO) in Chile has allowed a group of astronomers to find an extraordinary image of the nebula NGC 6357, a nursery of stars known as the "nebula of war and peace”
The scientific body said, this new panoramic, obtained from the ESO Observatory at Cerro Paranal has, in the Atacama Desert, shows numerous hot young stars, glowing clouds of gas and dust strange formations sculpted by ultraviolet radiation and stellar winds.

Sunday, June 17, 2012

The primary survey of stars and the finding of other 'Earths', amazing closer


The primary survey of stars close to the Sun with Earth-like planets are faster to creature a actuality thanks to the spectrometer calibration technique, a technology used to calculate the speed of a star and make measurements with precision and accuracy "unprecedented." This has been noted scientists of the Max Planck, the European Southern Observatory, who have tried this technique to trace the orbit of an exoplanet discovered and which revolve around the star HD75289 and the results published in Nature.

Wednesday, June 6, 2012

How can A Stars is growth


Spitzer will present significant information on the structure and growth of stars and the circumstellar medium (surrounding the star). The discovery and characterization of circumstellar disks of gas and dust, signs of extra-solar planetary systems is one of the most important scientific goals of the Spitzer mission

Molecular gas
The giant molecular clouds are composed primarily of hydrogen, are the reserve materials from which stars form. 

From the Hubble Space Telescope the smaller wavelength infrared


Providing wavelength coverage from 3 to 180 microns, Spitzer is an important addition to scientific Hubble Space Telescope (English) and the Chandra X-Ray Observatory (English). The smaller wavelength infrared (near-infrared) can see through regions heavily obscured by dust, so that astronomers can study newborn stars. The long wavelengths (far infrared) are very useful for studying the distribution of dust in the Milky Way, an important ingredient for the formation of planets and stars
About 80% of Spitzer observing time will be available to the wider scientific community, through a contest organized observing proposals by the Spitzer Science Center.